Titanium Straight Tube

Our Titanium Straight Tube (also known as titanium straight pipe, titanium tubing) is the core foundational component for industrial fluid transportation, heat exchange and structural engineering. Manufactured from high-purity commercially pure titanium and high-performance titanium alloys, our straight tubes fully inherit titanium's inherent advantages: superior corrosion resistance, ultra-high strength-to-weight ratio, excellent biocompatibility and wide temperature adaptability.

1.Seamless & Welded Dual Process Full Coverage : 

- Seamless Titanium Straight Tube : One-piece cold rolling / hot rolling forming from titanium billet, no weld seams, uniform wall thickness distribution, superior pressure bearing capacity (up to 70MPa), excellent impact resistance and fatigue resistance, suitable for high-temperature, high-pressure, flammable and explosive harsh working conditions.

- Welded Titanium Straight Tube : High-precision forming from titanium strips, full-automatic TIG/plasma inert gas shielded welding, 100% penetration weld inspection, weld strength reaches ≥95% of the base metal, more uniform wall thickness, lower cost and shorter delivery time, ideal for heat exchange, medium and low pressure corrosion-resistant pipeline systems.

2.Industry-Leading Corrosion Resistance : 

Excellent corrosion resistance in seawater, high chloride ion environments, strong oxidizing acids, alkalis, reducing media and sour crude oil conditions. Standard Grade 2 titanium tubes outperform 316L stainless steel in 90% of corrosive conditions; Grade 7 titanium tubes with palladium addition provide exceptional crevice corrosion resistance in extreme reducing acid and high-temperature brine environments, suitable for the harshest chemical and offshore oil & gas working conditions.

3.Ultra-High Precision Dimensional Control : 

Strictly manufactured in accordance with international standard tolerances, full-process CNC dimensional monitoring, outer diameter, wall thickness, straightness and ovality all meet or exceed ASTM/ASME standards. Precision-grade tubes can achieve outer diameter tolerance up to ±0.03mm, wall thickness tolerance up to ±0.02mm, perfect matching with fittings, flanges and heat exchanger tube sheets, reducing on-site installation difficulty and leakage risks.

4.Stable Performance in Extreme Temperature Environments : 

Maintain excellent mechanical properties, corrosion resistance and structural stability in an ultra-wide working temperature range from -269℃ (ultra-low temperature cryogenic environment) to 550℃ (high temperature working conditions). No brittleness at ultra-low temperatures, no strength degradation at high temperatures, fully adapting to extreme working conditions of aerospace, cryogenic engineering and high-temperature chemical processing.

5.Food & Pharmaceutical Grade Sanitary Compliance : 

Non-toxic, non-precipitating harmful substances, excellent biocompatibility, fully compliant with FDA and GMP sanitary standards. Optional electrolytic polishing treatment with surface roughness up to Ra≤0.2μm, smooth inner wall without dead corners, no medium residue and bacterial growth, ideal for pharmaceutical, food, beverage, biotechnology and pure water treatment industries.

6.Excellent Weldability & Secondary Processability : 

The base metal has excellent weldability, supporting on-site secondary welding, bending, flaring, flanging, threading and other machining. We can also provide prefabricated secondary processing services according to your drawings, reducing your on-site processing workload and improving installation efficiency.

7.Superior Heat Exchange Performance : 

Titanium has excellent thermal conductivity, and our precision thin-wall titanium tubes are specially designed for heat exchange equipment, with low thermal resistance, high heat transfer efficiency, and excellent anti-scaling performance. The smooth inner wall reduces fluid resistance and scale deposition, maintaining long-term high-efficiency heat exchange performance, widely used in shell and tube heat exchangers, condensers, evaporators and seawater desalination equipment.

We implement a full-process traceable quality management system, every single tube undergoes strict inspection from raw material incoming to finished product delivery :

- Raw Material Incoming Inspection : Titanium raw materials comply with ASTM B348 standard, full-spectrum chemical composition analysis, mechanical property testing, ultrasonic flaw detection, 100% traceable from melt batch to finished product.

- Precision Forming :

- Seamless tube: Hot piercing + multi-pass cold rolling / cold drawing forming, ensure uniform wall thickness distribution, high dimensional accuracy, no wall thickness deviation.

- Welded tube: High-precision titanium strip slitting + continuous roll forming + full-automatic TIG/plasma inert gas shielded welding, closed welding environment to avoid titanium oxidation, 100% penetration, no weld defects.

- Vacuum Heat Treatment : Full vacuum annealing treatment, eliminate internal stress generated during forming and welding, optimize metallographic structure, restore the corrosion resistance and toughness of titanium material, avoid hydrogen embrittlement and surface oxidation.

- Surface Treatment : Standard pickling and passivation to remove surface oxide scale, form a dense and stable titanium oxide passive film, maximize corrosion resistance. Optional mechanical polishing, electrolytic polishing for sanitary grade applications, with multi-stage cleaning and drying to ensure surface cleanliness.

- 100% Non-Destructive Testing (NDT)  : Every single tube undergoes 100% Eddy Current Testing (ET) + Ultrasonic Testing (UT) to detect surface and internal defects; welds of welded tubes undergo 100% Radiographic Testing (RT) to ensure zero weld defects.

- Finished Product Verification : Full dimensional inspection (outer diameter, wall thickness, length, straightness, ovality), hydrostatic pressure test (1.5 times working pressure, no leakage), pneumatic leak test, flattening test, flaring test, hardness test, to ensure all parameters meet the standard and customer requirements.

- Cleaning & Packaging : For sanitary grade and heat exchanger tubes, ultrasonic cleaning with pure water, oil-free and dust-free packaging, nitrogen filling protection to avoid oxidation during transportation.

Q: What is the difference between seamless and welded titanium straight tube? How to choose?

A: The core difference lies in the manufacturing process, performance and application scenarios:

- Seamless Titanium Tube : One-piece formed from titanium billet, no weld seam, higher pressure bearing capacity, better fatigue resistance, wider wall thickness range. It is the preferred choice for ultra-high pressure, high temperature, flammable and explosive, strong corrosive harsh working conditions, such as high-pressure chemical pipelines, aerospace hydraulic systems, oil & gas gathering and transportation.

- Welded Titanium Tube : Formed from titanium strip forming and welding, more uniform wall thickness, higher dimensional accuracy, longer fixed length, lower cost and shorter delivery time. It is suitable for heat exchangers, condensers, medium and low pressure corrosion-resistant pipelines, sanitary grade applications, where uniform wall thickness is more important for heat transfer efficiency.We can recommend the most suitable type according to your working pressure, medium, application and budget.

Q: What standards do your titanium straight tubes comply with?

A: Our titanium straight tubes are manufactured in strict accordance with international mainstream standards:

- Seamless tube: ASTM B861 / ASME SB-861, ASTM B337 / ASME SB-337

- Welded tube: ASTM B338 / ASME SB-338 (the global core standard for titanium heat exchanger tubes), ASTM B862 / ASME SB-862

- We can also comply with EN ISO 12708, DIN 17860, JIS H4631, AMS aerospace standards, ASME BPE sanitary standards and other national/industry standards according to your project requirements.

Q: What grades of titanium do you offer for straight tubes?

A: Our standard stock grades are Grade 2 (TA2), the most widely used general-purpose grade with balanced corrosion resistance, weldability and cost. We also provide a full range of titanium grades: commercially pure titanium (Grade 1, Grade 3, Grade 4) and titanium alloys (Grade 5, Grade 7, Grade 9, Grade 12). We can also customize special titanium alloy grades according to your extreme working condition requirements.

Q: What is your minimum order quantity (MOQ) for titanium straight tubes?

A: For standard in-stock specifications (Grade 2, common sizes), we support a low MOQ of 1 piece for sample testing and small batch procurement. For custom non-standard products, the MOQ is flexible, we can accept small batch customization according to your specific requirements, please contact our sales team for a detailed quotation.

Q: Can you provide custom cut to length and secondary processing? What information do I need to provide?

A: Yes, we provide full customized processing services. We can cut the tube to any length you need (from 50mm to 18m), and provide secondary processing such as bending, flaring, flanging, threading, flange welding, hole opening and U-bend processing according to your drawings. To ensure processing accuracy, you only need to provide detailed engineering drawings or clear parameter requirements, we can also provide design optimization suggestions according to your application.

Q: How do you guarantee product quality? What test reports can you provide?

A: We implement a full-process traceable quality management system, every single tube undergoes 100% non-destructive testing (ET + UT), and welded tubes have additional 100% RT testing for welds. We provide complete quality documents with each shipment:

- Mill Test Certificate (MTC) in accordance with EN 10204 3.1 standard, including chemical composition, mechanical properties, heat treatment batch number, NDT results, hydrostatic test results, dimensional inspection report

- Third-party inspection report (SGS, BV, TUV) available upon request (EN 10204 3.2 certified)All products come with a 12-month quality warranty from the date of delivery, free replacement for any quality defects under normal use.

Q: Can you provide samples before placing a bulk order?

A: Yes, we provide free standard sample pieces (within 200mm length, common sizes) for material and quality verification, you only need to bear the international shipping cost. For longer sample tubes or custom non-standard samples, we can provide them at a favorable sample price, with a sample lead time of 2-5 working days.

Q: What is the applicable working temperature and pressure range of your titanium straight tubes?

A: Our titanium straight tubes have excellent performance in a wide temperature and pressure range:

- Working temperature: From -269℃ (ultra-low temperature cryogenic environment) to 550℃ (high temperature working conditions)

- Working pressure: Up to 70MPa (10150PSI) for seamless tubes, up to 20MPa (2900PSI) for standard welded tubes, custom high-pressure grades availableThe specific allowable pressure and temperature depend on the material grade, wall thickness, outer diameter and working temperature, we can provide professional calculation and selection according to your working conditions.

Q: What surface treatment options are available for titanium straight tubes?

A: Our standard surface treatment is pickling and passivation (AP), which can remove surface oxide scale, form a dense and stable titanium oxide passive film, and maximize the corrosion resistance of titanium. We also provide optional surface treatments:

- Bright Annealing (BA): Bright and smooth surface, no pickling, suitable for decorative and precision applications

- Mechanical Polishing (MP): For general sanitary requirements, surface roughness up to Ra≤0.8μm

- Electrolytic Polishing (EP): For high-purity sanitary grade applications (pharmaceutical, food, biotechnology), surface roughness up to Ra≤0.2μm, fully compliant with FDA and GMP standardsWe can also customize special surface treatments such as sandblasting and coating according to your requirements.

Q: What is the maximum length of your titanium straight tube? Can you provide fixed length tubes?

A: Our standard maximum fixed length is 12m for seamless tubes and 18m for welded tubes, without intermediate welds. We can also provide shorter fixed length tubes (such as 1m, 2m, 3m, 6m) or custom cut to length according to your installation requirements, with length tolerance up to ±0.5mm for precision cutting.

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